
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>404 Not Found</title>
<style>
    body {
        font-family: Arial, sans-serif;
        background-color: #f8f9fa;
        margin: 0;
        padding: 0;
        display: flex;
        justify-content: center;
        align-items: center;
        height: 100vh;
        text-align: center;
    }
    .error-container {
        background-color: #fff;
        padding: 20px;
        border-radius: 5px;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    }
    h1 {
        color: #dc3545;
    }
</style>
</head>
<body>
<div class="error-container">
    <h1>404 Not Found</h1>
    <p>had connect ,but the page you are looking for could not be found.</p>
</div>
</body>
</html>
```